Calling Groovy or Java from JavaScript

I have a cool bit of dojo running where I click a button and it brings a success message on开发者_Python百科 the screen via JavaScript. Is it possible to issue a call to a server-side Groovy script (eg. foo.groovy) from within this JavaScript?

Not only do I want to show the cool success message, but I need to do some work in the background at that point also.

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Here are some relevant links from the Dojo documentation:

• Intro to AJAX and Dojo
• Dojo.xhrGet() reference: sends a GET request to the server-side resource (which can be a Groovy script or anything else that resides on the server). The live examples on this page are currently broken, but I'm told this is being resolved.
• Dojo.xhrPost() reference: sends a POST request. There are variants for PUT and DELETE too.

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The answer was to use dojo's AJAX call system.